mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-26 06:34:20 +08:00
Chris Tate
2ff5711a54
A shorthand property and an object literal passed as an argument no longer widen the declared record layout of the binding or parameter that receives them. A widened layout made every existing record that flowed into that binding or parameter convert to a copy, so later writes through the copy were lost. Those literals keep a missing element in their own fields and convert, with a check, into a declared record. The debug-variables fixture iterates an array whose elements may be undefined, so its loop binding keeps the union layout the debugger check inspects.
39 lines
1.0 KiB
TypeScript
39 lines
1.0 KiB
TypeScript
import { reportOther } from "./other.ts";
|
|
|
|
const moduleValue = 42;
|
|
const moduleText = "module";
|
|
|
|
function inspect(input: number, enabled: boolean, fallback = 9): void {
|
|
let value = input + 1;
|
|
const text = "hello é";
|
|
const update = (): void => {
|
|
value += 2;
|
|
console.log("capture", value); // debug: capture
|
|
};
|
|
console.log("locals", value, enabled, text, fallback); // debug: locals
|
|
{
|
|
const value = 99;
|
|
console.log("inner", value); // debug: shadow
|
|
}
|
|
update();
|
|
console.log("outer", value); // debug: restored
|
|
const bytes = new Uint8Array([4, 5]);
|
|
for (let i = 0; i < bytes.length; i++) {
|
|
console.log("loop", i, bytes[i]); // debug: loop
|
|
}
|
|
for (const item of [6, 7] as (number | undefined)[]) {
|
|
console.log("item"); // debug: item
|
|
console.log(item);
|
|
}
|
|
if (enabled) {
|
|
var hoisted = input + 10;
|
|
} else {
|
|
hoisted = 0;
|
|
}
|
|
console.log("hoisted", hoisted); // debug: hoisted
|
|
}
|
|
|
|
console.log("globals", moduleValue, moduleText); // debug: globals
|
|
inspect(3, true);
|
|
reportOther();
|